Artem Prilutskiy (R3ABM)

r3abm@dstar.su

BrandMeisterDMR Master Server

Applicable to:• Motorola IP-Site

Connect• Hytera Multi-Site

Connect

Pros:• Peer-to-Peer• High availability• No additional

servers

Cons:• Issues with

reachability on the last mile

• Limited capacity• Broadcast only (no

switching core)

Pros:• High compatibility with canonical

solutions on the radio-access network layer

Cons:• Single point of failure on the top of

aggregation (two BMaster of DMR Plus, quad root servers in DMR-MARC)

• Tough management of conferences

Site1

BrandMeister

CallDirector

Repeater1 Repeater2 RepeaterN

Site2

BrandMeister

CallDirector

Repeater1 Repeater2 RepeaterN

SiteN

BrandMeister

CallDirector

Repeater1 Repeater2 RepeaterN

DashBoard/SelfCare

Pros:• Call switching• High capacity• Peer-to-Peer on the backbone• No issues with IP-routing on

the last mile• Multi-protocol support

§ Debian Linux 8.x (x64)

§ MySQL Server 5.5 in Slave Mode*1

§ Mosquitto MQTT Message Broker

§ Memcached In-memory Cache

§ Apache Web Server + PHP for REST APIs

§ BrandMeister DMR Server

§ CallDirector (BrandMeister Network Dispatcher)

§ APIs and Supplementary Tools by PD0ZRY

*1 - Will be replaced by TaranTool in Master-Master Mode

§ Call switching:§ Private / Group§ Data / Voice / CSBK§ Call displacement based on priority (including emergency call)

§ Flexible routing:§ De-centralized Registry Database (location and user profile)§ Location cache on each server§ LUA Scripts

§ Event Notification and Powerful APIs:§ D-BUS§ MQTT§ LUA§ JSON over HTTP (via PHP wrapper)

§ Multiple protocol stacks (Motorola, Hytera, RadioActivity, Homebrew, etc.)

§ Embedded voice and data applications

§ Common-use applications:§ Interactive voice response (with national languages support)§ Signaling expansion (UU-Req/UU-Resp)§ Automatic registration/roaming§ Auto-patch call gateway (ALSA + D-BUS)§ SMS gateway§ IP bridge

§ Radio-amateur use:§ D-STAR D-Extra or DCS to talking group gateway§ D-STAR G2 call routing to private call gateway§ YaesuWIRES-X to talking group gateway§ G4KLX YSF Reflector to talking group gateway§ APRS location and telemetry§ APRS text message gateway§ AMPR access service§ Gateway for EchoLink or any other IP-based PTT applications

§ BrandMeister is only front-end application that works in real-time§ All business logic to distribute routing lists and user profiles

implemented outside of BrandMeister like a set of back-end applications and scripts

§ BrandMeister supports multiple sources of routing information: scripts, databases, in-memory cache, configuration files at the same time

§ Web applications and diagnostic tools are also separated§ BrandMeister uses event-driven mechanisms (MQ) to notify back-

ends about events, in-memory data storage and relational database to get location, routing and user profiles

§ We are in the process of implementation of mesh-based distributed network storage

§ In this paradigm all network servers will be equivalent, the network will be the most resistant to the loss of nodes

RoutingCore(DMRLayer3)

LinkManager

Multi-SiteConnect

IPSiteConnect WinMaster

D-ExtraLink Knave

Layer4

Layer4Applications

ServiceSuite

IPBridge

DataAccess

SQLStore MemoryCache PushStick

ServiceAccess

APRSGate

MySQL Memcahed Mosquitto

DMRbMaster/HamburgMotoTRBORepeaters

HyteraDMRRepeaters

D-STARReflectors

APRS-IS

AMPR

FirePump

Registry FirePump

DeutschWurst

HAM-DMR.DE

Tracker

Parrot

Router

§ Motorola MotoTRBO§ Automatic registration and roaming (ARS)§ Text messaging (TMS and ETSI)§ GPS location reporting (LRRP)§ Telemetry (control and execution)§ Restricted Access System (on Motorola repeaters)

§ Hytera DMR§ Automatic registration and roaming (RRS)§ Text messaging (TMP and ETSI)§ GPS location reporting (LP)§ Telemetry (control and execution, TP)

§ Other equipment§ Basic DMR services

§ Hytera’s Multi-Site Connect enabled repeaters§ RD-625, RD-965, RD-985(S)§ NAT traversal (no need to forward ports)

§ Motorola’s IP Site Connect enabled repeaters§ DR-3000, MTR-3000, XPR-8400, SLR-5500

§ RadioActivity KAIROS (in development)§ Homebrew DMR repeaters

§ G4KLX MMDVM DMR Repeater§ DV MEGA Series Hotspot§ SharkRF openSPOT§ DV4mini Dongle§ Any repeater based on specification of DG1HT, DL5DI and G4KLX

§ We are open to support other type of equipment